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3 years ago

Please help me for 20 points

Mathematics

2 answers:

gogolik [260]3 years ago

7 0

Answer:

The answer..

Step-by-step explanation:

its qwiendwkljnwjnl.qjfnef

harina [27]3 years ago

6 0

Answer:

19 i think

Step-by-step explanation:

the problem describes an isosceles triangle by saying that two sides are congruent

You can also infer that <T is the vertex so subtract that from 180 to find what the combined two missing angles are

you get 38, now divide that by 2 to find the missing angle

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Answer:

Step-by-step explanation:

210 divided by 5 is 42

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3 years ago

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I have to find the angle measurements of a interior triangle a is 4x b is 7x-2 and c is 5x-10

RSB [31]

Answer:

$m\angle a=48^o\\m\angle b=82^o\\m\angle c=50^o$

Step-by-step explanation:

we know that

The sum of the interior angles in any triangle must be equal to 180 degrees

$m\angle a+m\angle b+m\angle c=180^o$

substitute the given values

$4x^o+(7x-2)^o+(5x-10)^o=180^o$

solve for x

$(16x-12)^o=180^o$

$16x=180+12\\16x=192\\x=12$

Find the angle measurements

$m\angle a=4(12)=48^o$

$m\angle b=7(12)-2=82^o$

$m\angle c=5(12)-10)=50^o$

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3 years ago

What is the volume of the composite figure? Express the

Papessa [141]

Answer:

$V=312\pi\ mm^{3}$

Step-by-step explanation:

we know that

The volume of the composite figure is equal to the volume of a semi-sphere plus the volume of the cone

$V=\frac{4}{6}\pi r^{3} +\frac{1}{3} \pi r^{2} h$

we have

$r=6\ mm$

$h=14\ mm$

substitute

$V=\frac{4}{6}\pi (6)^{3} +\frac{1}{3} \pi (6)^{2} (14)$

$V=144\pi +168\pi$

$V=312\pi\ mm^{3}$

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3 years ago

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